﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace hello
{
    class Program
    {
        static void Main(string[] args)
        {
            int n = 0;
            Console.ForegroundColor = ConsoleColor.Red;
            Console.BackgroundColor = ConsoleColor.White;
            Console.WriteLine("Hello,World!");
            if(n == 0)
            {
                Console.ForegroundColor = ConsoleColor.White;
                Console.BackgroundColor = ConsoleColor.Black;
            }

        }
    }
}
